LogoPractical Web Tools

Free Forever

All our tools are completely free to use. No account required, No hidden fees and No subscriptions.

Fast & Secure

All processing happens in your browser. Your files never leave your device.

No File Size Limits

Convert files of any size. No restrictions on file sizes or number of conversions.

Batch Processing

Convert multiple files at once to save time and effort.

File Converters

  • PDF Tools
  • Image Converter
  • Video Converter
  • Audio Converter
  • Document Converter
  • eBook Converter
  • Archive Tools
  • File Tools

Calculators

  • Finance Calculators
  • Health Calculators
  • Math Calculators
  • Science Calculators
  • Other Tools

Popular Tools

  • PDF to Word
  • HEIC to JPG
  • Merge PDF
  • Fillable PDF Creator
  • Mortgage Calculator
  • BMI Calculator
  • AI Chat

Company

  • About Us
  • Blog
  • Contact
  • Request a Tool

Legal

  • Privacy Policy
  • Terms of Service
Email Support
Practical Web Tools Logo
Practical Web Tools

Free Tools — Your Files Never Leave Your Device

Practical Web Tools - Convert files & chat with AI — fully offline | Product Hunt

© 2026 Opal Emporium LLC. All rights reserved.

Privacy-first file conversion and AI chat. No accounts, no uploads, no tracking.

eBook Converter

Convert between different eBook formats online for free. Perfect for Kindle, Kobo, Apple Books, and other e-readers.

Popular eBook Conversions

EPUB → PDFPDF → EPUBMOBI → EPUBAZW3 → EPUBAZW3 → PDFMOBI → PDFFB2 → EPUBCBZ → PDF
EP

EPUB

Electronic Publication

EPUB to PDFEPUB to FB2EPUB to TXTEPUB to HTML
MO

MOBI

Mobipocket eBook

MOBI to EPUBMOBI to PDFMOBI to TXTMOBI to HTML
AZ

AZW3

Kindle Format 8

AZW3 to EPUBAZW3 to PDFAZW3 to TXTAZW3 to HTML
AZ

AZW

Amazon Kindle eBook

AZW to EPUBAZW to PDFAZW to TXTAZW to HTML
PD

PDF

Portable Document Format

PDF to EPUBPDF to TXTPDF to HTML
FB

FB2

FictionBook 2.0

FB2 to EPUBFB2 to PDFFB2 to TXTFB2 to HTML
CB

CBZ

Comic Book ZIP

CBZ to PDF
TX

TXT

Plain Text

TXT to EPUBTXT to PDFTXT to FB2TXT to HTML

How to Convert eBook Files

Select Format

Choose source and target eBook formats

Upload eBook

Drag & drop or select your eBook file

Convert

Wait for processing to complete

Download

Get your converted eBook

About Our eBook Converter

Our free online eBook converter supports popular formats including EPUB, MOBI, AZW3, PDF, FB2, and CBZ comic book archives. All conversions happen in your browser, ensuring your books remain private.

Whether you need to convert books for your Kindle, Kobo, Apple Books, or other e-readers, our tool preserves formatting, table of contents, and cover images during conversion.

Supported Formats

EPUBMOBIAZW3AZWPDFFB2CBZTXT